How to rotate an image ?

Use the TransformedBitmap element to rotate an image.

[XAML]

<Image Width='200' Height='200'>
	<Image.Source>
		<TransformedBitmap Source='C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Winter.jpg'>
			<TransformedBitmap.Transform>
				<RotateTransform Angle='270' />
			</TransformedBitmap.Transform>
		</TransformedBitmap>
	</Image.Source>
</Image>